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Spring RestTemplate timeout
... The above code doesn't work in latest Spring. It gives ClassCastException java.lang.ClassCastException: org.springframework.http.client.InterceptingClientHttpRequestFactory cannot be cast to org.springframework.http.client.HttpComponentsClientHttpRequestFactory
– comiventor
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How do servlets work? Instantiation, sessions, shared variables and multithreading
...ets and filters are shared among all requests. That's the nice thing about Java, it's multithreaded and different threads (read: HTTP requests) can make use of the same instance. It would otherwise be too expensive to recreate, init() and destroy() them for every single request.
You should also rea...
java: Class.isInstance vs Class.isAssignableFrom
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I disagree. If you look up the Javadoc of Byte you will discover it extends Number and is a class. (byte) 1 is not equivalent to Byte. The former is a primitive. The latter is a Class.
– Gili
Feb 28 '14 at 22:11
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Is it unnecessary to put super() in constructor?
...tends Base { }
This is fine because if you add no constructor explicitly Java puts in a public default constructor for you.
public class Base { }
public class Derived extends Base { public Derived(int i) { } }
Also fine.
public class Base { public Base(String s) { } }
public class Derived exte...
Difference between “@id/” and “@+id/” in Android
...us symbol + instructs to create a new resource name and add in to the R.java file but what about @id/ ? From the documentation of ID : when referencing an Android resource ID , you do not need the plus symbol, but must add the android package namespace, like so:
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@RequestParam vs @PathVariable
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@AlexO: this has nothing to do with java8, it works even for java 5 and Spring3.0: The point is that the code is compiled with debugging enabled.
– Ralph
Oct 23 '16 at 8:18
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Do you (really) write exception safe code? [closed]
...you really write exception safe code?
Of course, I do.
This is the reason Java lost a lot of its appeal to me as a C++ programmer (lack of RAII semantics), but I am digressing: This is a C++ question.
It is, in fact, necessary when you need to work with STL or Boost code. For example, C++ threads (...
How to modify a global variable within a function in bash?
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98
When you use a command substitution (ie the $(...) construct), you are creating a subshell. Sub...
What is the difference between @Inject and @Autowired in Spring Framework? Which one to use under wh
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Assuming here you're referring to the javax.inject.Inject annotation. @Inject is part of the Java CDI (Contexts and Dependency Injection) standard introduced in Java EE 6 (JSR-299), read more. Spring has chosen to support using the @Inject annotation synonymously...
What is x after “x = x++”?
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@EmeraldWeapon It's defined in Java. It's only in C/C++ do you see that kind of shenanigans.
– Mysticial
Apr 24 '16 at 15:08
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